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https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Andrew Clark
06b7db4a10
Fires during the render phase, so you can recover from an error within the same pass. This aligns error boundaries more closely with try-catch semantics. Let's keep this behind a feature flag until a future release. For now, the recommendation is to keep using componentDidCatch. Eventually, the advice will be to use getDerivedStateFromCatch for handling errors and componentDidCatch only for logging.
45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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import invariant from 'fbjs/lib/invariant';
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// Exports ReactDOM.createRoot
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export const enableCreateRoot = true;
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export const enableUserTimingAPI = __DEV__;
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// Mutating mode (React DOM, React ART, React Native):
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export const enableMutatingReconciler = true;
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// Experimental noop mode (currently unused):
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export const enableNoopReconciler = false;
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// Experimental persistent mode (Fabric):
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export const enablePersistentReconciler = false;
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// Experimental error-boundary API that can recover from errors within a single
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// render phase
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export const enableGetDerivedStateFromCatch = false;
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// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
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export const debugRenderPhaseSideEffects = false;
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// In some cases, StrictMode should also double-render lifecycles.
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// This can be confusing for tests though,
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// And it can be bad for performance in production.
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// This feature flag can be used to control the behavior:
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export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
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// To preserve the "Pause on caught exceptions" behavior of the debugger, we
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// replay the begin phase of a failed component inside invokeGuardedCallback.
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export const replayFailedBeginPhaseWithInvokeGuardedCallback = __DEV__;
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// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
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export const warnAboutDeprecatedLifecycles = false;
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// Only used in www builds.
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export function addUserTimingListener() {
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invariant(false, 'Not implemented.');
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}
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